Ice cutter



F. F. ZAVATKAY.

ICE CUTTER.

i APPLxcATloN FILED MAY 31.1921. 1,412,500. Patented Apr. 11, 1922.

2 SHEETS-SHEET 2.

rnnnniucx r. zAvATKAY, or WINsTED, CONNECTICUT.

ICE CUTTER.

Specification of Letters Patent.

Patented Apr. 11, 1922.

Application filed May 31, 1921. Serial No. 473,899.

T0 all whom t may concern;

Be it known that I, FREDERICK F. ZAvAT- KAY, a citizen of the UnitedStates, residing at Winsted, in the county of Litchfield and State ofConnecticut, have invented a new and useful Improvement in Ice Cutters;and I do hereby declare the following, when taken in Connection with theaccompanying drawings and the characters of reference marked thereon, tobe a full, clear, and exact description of the same, and which saiddrawings constitute part of this application, and represent, in-

Fig. 1 a front view of an ice cutterconstructed in accordance with myinvention.

Fig. 2 a sectional view on the line 2 2 of Fig. Y

Fig. 3 a -vertical sectional view on the line 3-3 of Figure2.

Fig. L a perspective view of one of the cutters detached.

Fig. 5 a plan view of one of the fillerblocks detached.

Fig. 6 an end view of the same.

Fig. 7 an inside view of one of the outer filler-blocks detached.

Fig. 8 an end view of the same.

Fig. 9 an inside view of the cushion-block between the channel and frontplate of the plow detached.

Fig. 10 an end view of the same.

This invention relates tov im rovement in ice cutters and particularlyir attachment to snowplows of railway engines, the object being toprovide a device which may be used in connection with snowplows of usualconstruction designed to be raised or,

lowered to meet conditions required by depth of ice to be cut, and whichwill have aV sawing or shearing effect on the ice, so that it willoperate with less friction and permit the plow to be run at acomparatively high rate of speed, and the invention consists in theconstruction and arrangement of parts as will be hereinafter describedand particularly recited in the claims.

In carrying out my invention, I employ two bases in the form ofchannel-irons l5 and 16 which are attached to the'front plates 17 of avertically adjustable snowplow adapted to be attached to the front of arailway plow, the plates being arranged at an-angle, so as to form awedge-shaped plow. Between the channel and the plates 17 is acushion-block 18 and secured to the face of the channel-irons are aseries of cutters 19 having forwardly-projecting cuttingedges 2O formedat their outer ends with beveled saw-teeth 21. Eight cutters are usuallyrequired for each side of the plow and the cutters are so arranged onthe channel that the cutting-edge is at an angle of about thirtydegrees. These cutters are separated from each other by spacing-lugs 22projecting upward from a metal fillerblock 23 located within thechannel-irons below the cutters, so as to provide a rigid supporttherefor. In front of the cutters are blocks 24 of iron or armored wood.

The cutters are bolted to the channel-iron; the blocks 24 also bolted tothe channel-iron and all bolted to the front plate of the plow, so as toform a rigid construction necessary to stand the strain imposed upon itwhen cutting ice undei` pressure of a high-powered engine. By arrangingthe cutters as shown they have a sawing or shearing effect on the ice,resulting in easy operation, due t0 lack of friction, so that the plowmay be run at a comparatively high rate of speed.

This device will not only remove ordinary snow from the rails but willcut away heavy coatings of ice from the top of the rail, inside therails, and for a suilicient distance outside the rails to a depth ofthree inches below the top of the rail.

I claim:

1. An ice cutter comprising bases adapted to be secured to the frontplate of a snowplow, a series of fiat cutters secured to the outer faceof said bases, said cutters having forwardly-projecting cutting-edgesprovided with a plurality of beveled teeth.

2. An ice cutter comprising channel-irons adapted to be secured to thefront plate of a snowplow, blocks between said channel and front plate,a series of cutters secured to the outer face of the channel-iron, andprovided with orwardly-projecting cuttlngedges, blocks within saidchannels below said cutters and provided with spacers extending outwardbetween the cutters.

3. An ice cutter comprisin channel-irons adapted to be secured to theront plate of a snowplow, cutters secured to the outer face In testimon7whereof, I have signed this ot' sind channels, said cutters having for-Specification 111 the presence of two sub- Wardlyanddownwardlvprojeetlng cuttingscrlblng Witnesses.

edges terminating in beveled teeth, ller- FREDERICK F. ZAVATKAY. 5blocks in Said Channels beneath said cutters Iitnesses:

andHer-blooks located forward of said out- I/VILLIAM E. DICKINSON,

ters and providing firm supports therefor. W. BARTH.

